[1,2,3] + [4,5,6]
Out[1]: [1, 2, 3, 4, 5, 6]

[1,2,3] + 'worlg'
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[2], line 1
----> 1 [1,2,3] + 'worlg'

TypeError: can only concatenate list (not "str") to list

'hello' + 'world'
Out[3]: 'helloworld'

[1,2,3] + (4,5,6)
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[4], line 1
----> 1 [1,2,3] + (4,5,6)

TypeError: can only concatenate list (not "tuple") to list

(1,2,3) + (4,5,6)
Out[5]: (1, 2, 3, 4, 5, 6)

[1,2,3] + ["1","2","3"]
Out[6]: [1, 2, 3, '1', '2', '3']